Benchmark
WEB 壓測軟體 標籤： 軟體密技 WEB 壓測軟體 介紹兩套軟體： Siege & Webbench 軟體名稱：siege(英文原意：圍攻) 下載位址：wget http://www.joedog.org/pub/siege/siege-latest.tar.gz tar -zxvf siege-3.0.5.tar.gz cd siege-3.0.5 ./configure –prefix=/opt/siege –with-ssl=no make make install 修改siege配置(若無此檔案，自行建立此檔案) vi ~/.siegerc
configuration
Load Balance – HAProxy Setup + keepalived 實現web服務的高可用和負載均衡 標籤： Linux教學 1.HAProxy Description HAProxy 是一套快速以及靈活的load balance套件，透過haproxy可以快速達到server分流、判斷存活、連線數量等功能。當流量達到一定的程度後load balance是一大重點，如何讓各server平均去負擔流量是相當重要的，透過haproxy可以簡單快速的達成load balance。 架構說明： http://support.severalnines.com/attachments/token/mdmzgaadlrzajfc/?name=haproxy_keepalived.PNG 2. HAProxy架設 0.環境 OS:RCHE 5.7 Haproxy: 1.4.15 VIP:10.55.79.
Java
VM Host custom Java Control Panel offers graphing of basic JVM parameters. You need to enable 'monitor' attribute in your JCP and wait a 5 minutes before graphs fill with data. On `'tats' page you can select different graphing periods. See example graph below. To closer
Have a look in /var/lib/roundcube/config/defaults.inc.php (in Ubuntu 16.04.1) if the following lines exist and are correct ——————————————————————————————————— // store draft message is this mailbox // leave blank if draft messages should not be stored // NOTE: Use folder names with namespace prefix (INBOX. on Courier-IMAP) $config[
database
This tutorial exists for these OS versions * Ubuntu 16.04 (Xenial Xerus) * Ubuntu 12.10 (Quantal Quetzal) * Ubuntu 12.04 LTS (Precise Pangolin) * Ubuntu 11.10 (Oneiric Ocelot) On this page 1. 1 Preliminary Note 2. 2 Installing MySQL or MariaDB 1. 2.1 Install MySQL 5.7 2. 2.
Troubleshooting
Question As I don't know the openssl command's arguments by heart, I am used to referring to the same SO answer whenever I need to create self-signed certificates (for testing environments). The command looks like: openssl req -x509 -nodes -newkey rsa:2048 -keyout mysite.key -out
configuration
在Twitter上偶然看到一張很漂亮的動態監控圖，查看之後才知道是由一款名爲netdata的開源工具實現，獲取實時(秒級)數據並用動態圖表展示，數據從/proc相關文件獲取(Linux中一切皆文件，內核將硬件虛擬成文件來進行管理)。 Introduction netdata代碼發佈在GitHub上。 以下是相關文檔 Prerequisites netdata依賴一些包，如make、gcc、autoconf、autogen、automake、pkg-config、git等。 git可使用yum安裝，也可參考本人的Compile Install And Configure Git On CentOS7通過源碼編譯安裝。 執行如下命令安裝依賴包 sudo yum install -y libuuid libuuid-devel zlib zlib-devel gcc make autoconf automake pkgconfig #根據個人情況使用 sudo yum install -y git Node
database
Here is a simple possibility to control a lot of virtual hosts using a simple PHP script to map them to the right path. First of all you need to make sure that mod_rewrite is loaded: a2enmod rewrite Further we need these packages: php5-cli php5-mysql mysql-server What we'
Network
http://guowang327.blog.51cto.com/6513732/1736067 2016-01-18 10:47:41 标签：apache cacti 第一步：（cacti的安装） yum install net-snmp net-snmp-utils yum install cacti vi /etc/snmp/snmpd.conf com2sec notConfigUser default public access notConfigGroup "" any noauth exact systemview none none view all included .1 80 view systemview included
mysql
Notice: Undefined variable: content in E:\Server\vhosts\www.lvtao.net\libs\template.core.php on line 557 进入网站会出现大量类似下面的提示，但是可以正常显示和运行 Notice: Use of undefined constant ctbTitle – assumed 'ctbTitle' in d:\ctb1.5\ctb\include\config.php on line 23… 答案：这些是 PHP 的提示而非报错，PHP 本身不需要事先声明变量即可直接使用，但是对未声明变量会有提示。一般作为正式的网站会把提示关掉的，甚至连错误信息也被关掉
configuration
http://oss.oetiker.ch/smokeping/doc/index.en.html OVERVIEW This document provides some examples of Smokeping configuration files. All the examples can be found in the examples directory in the Smokeping documentation. Note that the DNS names in the examples are non-functional. Details of the syntax and all the
Network
Sam Tang 25 November 2016 Linux No Comments SmokePing 是一套相當實用的網路監督工具, 畫出的圖片也很漂亮。雖然要安裝 SmokePing 比較麻煩, 但只要透過 yum 安裝 SmokePing 所需的套件就方便很多了, 以下是 RHEL 及 CentOS 安裝及配置 SmokePing 的方法。 首先啟用 EPEL Repo: # yum install epel-release 接著安裝 SmokePing 所需的套件: # yum install perl httpd httpd-devel mod_fcgid rrdtool perl-CGI-SpeedyCGI fping rrdtool-perl perl-Sys-Syslog 然後安裝以下 CPAN 模組: